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QtCreator crashed and now will not start due to segfault

Scheduled Pinned Locked Moved Solved Qt Creator and other tools
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  • T Offline
    T Offline
    TMcSquared
    wrote on 9 Aug 2018, 15:19 last edited by
    #7

    I've deleted those already between installs

    M 1 Reply Last reply 9 Aug 2018, 15:20
    0
    • T TMcSquared
      9 Aug 2018, 15:19

      I've deleted those already between installs

      M Offline
      M Offline
      mrjj
      Lifetime Qt Champion
      wrote on 9 Aug 2018, 15:20 last edited by mrjj 8 Sept 2018, 15:22
      #8

      @TMcSquared
      and it still crashes ? wow. thats new.
      Do you have sessions enabled ?
      also , have you tried starting it from a shell (cmd)
      to see if anything is written ?

      also when starting in cmd.
      try adding
      -noload Welcome

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      • T Offline
        T Offline
        TMcSquared
        wrote on 9 Aug 2018, 15:41 last edited by
        #9

        I get a segmentation fault when I run it from the cmdline both without and with arguments.

        J 1 Reply Last reply 9 Aug 2018, 15:51
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        • T TMcSquared
          9 Aug 2018, 15:41

          I get a segmentation fault when I run it from the cmdline both without and with arguments.

          J Offline
          J Offline
          JonB
          wrote on 9 Aug 2018, 15:51 last edited by
          #10

          @TMcSquared
          There's, oohh, a 1% chance that if you try running Qt Creator from within a debugger like Visual Studio (if you have that...), when it faults you'll get enough information from the stack trace to hazard a guess as to where it's going wrong...

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          • T Offline
            T Offline
            TMcSquared
            wrote on 9 Aug 2018, 16:20 last edited by
            #11

            I just debugged it and got this: Exception thrown at 0x670E5DA7 (Qt5Core.dll) in qtcreator.exe: 0xC0000005: Access violation reading location 0x7E5B8721.

            A 1 Reply Last reply 9 Aug 2018, 16:54
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            • T TMcSquared
              9 Aug 2018, 16:20

              I just debugged it and got this: Exception thrown at 0x670E5DA7 (Qt5Core.dll) in qtcreator.exe: 0xC0000005: Access violation reading location 0x7E5B8721.

              A Offline
              A Offline
              aha_1980
              Lifetime Qt Champion
              wrote on 9 Aug 2018, 16:54 last edited by
              #12

              @TMcSquared

              Is it possible that the wrong Qt DLLs are loaded? Have you changed the PATH environment variable, for example?

              Qt has to stay free or it will die.

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              • T Offline
                T Offline
                TMcSquared
                wrote on 9 Aug 2018, 16:55 last edited by TMcSquared 8 Sept 2018, 16:59
                #13

                Hmm I'll try adding it to the PATH xD

                EDIT: that didn't work

                A J 2 Replies Last reply 9 Aug 2018, 16:56
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                • T TMcSquared
                  9 Aug 2018, 16:55

                  Hmm I'll try adding it to the PATH xD

                  EDIT: that didn't work

                  A Offline
                  A Offline
                  aha_1980
                  Lifetime Qt Champion
                  wrote on 9 Aug 2018, 16:56 last edited by
                  #14

                  @TMcSquared

                  No, that's not what I meant! I meant, have you done before? Or have you installed some program that did?

                  Qt has to stay free or it will die.

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                  • M Offline
                    M Offline
                    mranger90
                    wrote on 9 Aug 2018, 17:00 last edited by
                    #15

                    Take a look at qt.conf in the creator/bin directory. If it's corrupted then plugins wont load.

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                    • T Offline
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                      TMcSquared
                      wrote on 9 Aug 2018, 17:12 last edited by
                      #16

                      It's not corrupted because it's a clean install

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                      • M Offline
                        M Offline
                        mranger90
                        wrote on 9 Aug 2018, 19:08 last edited by
                        #17

                        The try wiping out the creator files under AppData\Roaming\Qtproject

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                        • T Offline
                          T Offline
                          TMcSquared
                          wrote on 9 Aug 2018, 19:20 last edited by
                          #18

                          already did that.

                          M 1 Reply Last reply 9 Aug 2018, 19:28
                          0
                          • T TMcSquared
                            9 Aug 2018, 19:20

                            already did that.

                            M Offline
                            M Offline
                            mrjj
                            Lifetime Qt Champion
                            wrote on 9 Aug 2018, 19:28 last edited by
                            #19

                            @TMcSquared
                            Best guess is that it gets wrong QtDLLs maybe via
                            path.

                            1 Reply Last reply
                            1
                            • T Offline
                              T Offline
                              TMcSquared
                              wrote on 9 Aug 2018, 20:30 last edited by
                              #20

                              My PATH variable has zero Qt paths in it. even after a clean install.

                              M 1 Reply Last reply 9 Aug 2018, 20:32
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                              • T TMcSquared
                                9 Aug 2018, 20:30

                                My PATH variable has zero Qt paths in it. even after a clean install.

                                M Offline
                                M Offline
                                mrjj
                                Lifetime Qt Champion
                                wrote on 9 Aug 2018, 20:32 last edited by
                                #21

                                @TMcSquared
                                I have no idea then.
                                last test
                                can you start with
                                qtcreator -noload Welcome -noload QmlDesigner -noload QmlProfiler
                                from shell and see if still crash ?

                                T 1 Reply Last reply 9 Aug 2018, 20:51
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                                • M mrjj
                                  9 Aug 2018, 20:32

                                  @TMcSquared
                                  I have no idea then.
                                  last test
                                  can you start with
                                  qtcreator -noload Welcome -noload QmlDesigner -noload QmlProfiler
                                  from shell and see if still crash ?

                                  T Offline
                                  T Offline
                                  TMcSquared
                                  wrote on 9 Aug 2018, 20:51 last edited by
                                  #22

                                  :O It opened with qtcreator -noload Welcome -noload QmlDesigner -noload QmlProfiler

                                  1 Reply Last reply
                                  1
                                  • SGaistS Offline
                                    SGaistS Offline
                                    SGaist
                                    Lifetime Qt Champion
                                    wrote on 9 Aug 2018, 20:52 last edited by
                                    #23

                                    Hi,

                                    Then it sounds like a graphic driver issue then. Are you sure there wasn't any modification in that regard on your machine ?

                                    Interested in AI ? www.idiap.ch
                                    Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

                                    1 Reply Last reply
                                    3
                                    • T TMcSquared
                                      9 Aug 2018, 16:55

                                      Hmm I'll try adding it to the PATH xD

                                      EDIT: that didn't work

                                      J Offline
                                      J Offline
                                      JonB
                                      wrote on 9 Aug 2018, 20:55 last edited by JonB 8 Sept 2018, 20:56
                                      #24

                                      @TMcSquared
                                      You could check whether Windows Update snuck in and did anything since it last worked... :)

                                      1 Reply Last reply
                                      0
                                      • T Offline
                                        T Offline
                                        TMcSquared
                                        wrote on 9 Aug 2018, 21:23 last edited by TMcSquared 8 Sept 2018, 21:24
                                        #25

                                        That's completely possible, thanks for your guy's help!
                                        @SGaist I have no idea, it quit working while I was logged in.

                                        1 Reply Last reply
                                        1
                                        • N Offline
                                          N Offline
                                          nwoki
                                          wrote on 19 Oct 2018, 11:10 last edited by
                                          #26

                                          Hi all. Sorry to revive this topic but this problem has occurred to me as well but on an application I wrote for a client. The application was running fine. Then it crashed (just like @TMcSquared ) and hasn't opened since.
                                          My access violation is in the QtWidgets.dll module.

                                          Any clues? (i don't have the welcome/QmlDesigner/etc modules to disable on load as does qtcreatorI)

                                          M 1 Reply Last reply 19 Oct 2018, 11:24
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